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Finding the Fourth Proportional to 338,341.70, 507,146.31 and 220,097.54

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Solution

The fourth proportional to 338,341.70, 507,146.31 and 220,097.54 is: 329,908.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,341.70 : 507,146.31 = 220,097.54 : x
  2. Step 2: Convert to fraction form
    338,341.70/507,146.31 = 220,097.54/x
  3. Step 3: Cross multiply
    338,341.70x = 507,146.31 × 220,097.54
  4. Step 4: Simplify right side
    338,341.70x = 111,621,655,251.08
  5. Step 5: Solve for x
    x = 111,621,655,251.08/338,341.70
  6. Step 6: Final answer
    x = 329,908.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.